STARSHIP Token

Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

Reentrancy in StarShip._transfer(address,address,uint256) (#1009-1053):
External calls:
- swapAndLiquify(contractTokenBalance) (#1040)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1087-1093)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1040)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1052)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#965)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1134)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1143)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1154)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#881)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1135)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1145)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1155)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#883)
- _tokenTransfer(from,to,amount,takeFee) (#1052)
- _rTotal = _rTotal.sub(rFee) (#920)
- _tokenTransfer(from,to,amount,takeFee) (#1052)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#967)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#880)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1153)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1144)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#882)
Apply the check-effects-interactions pattern.

Additional information: link

Redundant expression "this (#258)" inContext (#252-261)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Reentrancy in StarShip._transfer(address,address,uint256) (#1009-1053):
External calls:
- swapAndLiquify(contractTokenBalance) (#1040)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1087-1093)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1040)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1052)
- _liquidityFee = _previousLiquidityFee (#994)
- _liquidityFee = 0 (#989)
- _tokenTransfer(from,to,amount,takeFee) (#1052)
- _previousLiquidityFee = _liquidityFee (#986)
- _tokenTransfer(from,to,amount,takeFee) (#1052)
- _previousTaxFee = _taxFee (#985)
- _tokenTransfer(from,to,amount,takeFee) (#1052)
- _tFeeTotal = _tFeeTotal.add(tFee) (#921)
- _tokenTransfer(from,to,amount,takeFee) (#1052)
- _taxFee = _previousTaxFee (#993)
- _taxFee = 0 (#988)
Reentrancy in StarShip.constructor() (#753-769):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#758-759)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#765)
- _isExcludedFromFee[address(this)] = true (#766)
- uniswapV2Router = _uniswapV2Router (#762)
Reentrancy in StarShip.swapAndLiquify(uint256) (#1055-1076):
External calls:
- swapTokensForEth(half) (#1067)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1087-1093)
- addLiquidity(otherHalf,newBalance) (#1073)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1073)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1073)
- _allowances[owner][spender] = amount (#1005)
Reentrancy in StarShip.transferFrom(address,address,uint256) (#806-810):
External calls:
- _transfer(sender,recipient,amount) (#807)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1087-1093)
External calls sending eth:
- _transfer(sender,recipient,amount) (#807)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#808)
- _allowances[owner][spender] = amount (#1005)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in StarShip._transfer(address,address,uint256) (#1009-1053):
External calls:
- swapAndLiquify(contractTokenBalance) (#1040)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1087-1093)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1040)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#1138)
- _tokenTransfer(from,to,amount,takeFee) (#1052)
- Transfer(sender,recipient,tTransferAmount) (#1148)
- _tokenTransfer(from,to,amount,takeFee) (#1052)
- Transfer(sender,recipient,tTransferAmount) (#1158)
- _tokenTransfer(from,to,amount,takeFee) (#1052)
- Transfer(sender,recipient,tTransferAmount) (#886)
- _tokenTransfer(from,to,amount,takeFee) (#1052)
Reentrancy in StarShip.constructor() (#753-769):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#758-759)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_tTotal) (#768)
Reentrancy in StarShip.swapAndLiquify(uint256) (#1055-1076):
External calls:
- swapTokensForEth(half) (#1067)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1087-1093)
- addLiquidity(otherHalf,newBalance) (#1073)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1073)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1006)
- addLiquidity(otherHalf,newBalance) (#1073)
- SwapAndLiquify(half,newBalance,otherHalf) (#1075)
Reentrancy in StarShip.transferFrom(address,address,uint256) (#806-810):
External calls:
- _transfer(sender,recipient,amount) (#807)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1087-1093)
External calls sending eth:
- _transfer(sender,recipient,amount) (#807)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1006)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#808)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#480-485) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now > _lockTime,Contract is locked until 7 days) (#482)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#285-294) uses assembly
- INLINE ASM (#292)
Address._functionCallWithValue(address,bytes,uint256,string) (#378-399) uses assembly
- INLINE ASM (#391-394)
Do not use evm assembly.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#378-399) is never used and should be removed
Address.functionCall(address,bytes) (#338-340) is never used and should be removed
Address.functionCall(address,bytes,string) (#348-350) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#363-365) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#373-376) is never used and should be removed
Address.isContract(address) (#285-294) is never used and should be removed
Address.sendValue(address,uint256) (#312-318) is never used and should be removed
Context._msgData() (#257-260) is never used and should be removed
SafeMath.mod(uint256,uint256) (#230-232) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#246-249) is never used and should be removed
Remove unused functions.

Additional information: link

StarShip._rTotal (#717) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
StarShip._previousTaxFee (#725) is set pre-construction with a non-constant function or state variable:
- _taxFee
StarShip._previousLiquidityFee (#728) is set pre-construction with a non-constant function or state variable:
- _liquidityFee
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Low level call in Address.sendValue(address,uint256) (#312-318):
- (success) = recipient.call{value: amount}() (#316)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#378-399):
- (success,returndata) = target.call{value: weiValue}(data) (#382)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#524) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#525) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#542) is not in mixedCase
Function IUniswapV2Router01.WETH() (#564) is not in mixedCase
Parameter StarShip.setSwapAndLiquifyEnabled(bool)._enabled (#911) is not in mixedCase
Parameter StarShip.calculateTaxFee(uint256)._amount (#970) is not in mixedCase
Parameter StarShip.calculateLiquidityFee(uint256)._amount (#976) is not in mixedCase
Variable StarShip._taxFee (#724) is not in mixedCase
Variable StarShip._liquidityFee (#727) is not in mixedCase
Variable StarShip._maxTxAmount (#736) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#569) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#570)
Variable StarShip._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#941) is too similar to StarShip._getTValues(uint256).tTransferAmount (#933)
Variable StarShip._transferStandard(address,address,uint256).rTransferAmount (#1133) is too similar to StarShip._getTValues(uint256).tTransferAmount (#933)
Variable StarShip.reflectionFromToken(uint256,bool).rTransferAmount (#845) is too similar to StarShip._getTValues(uint256).tTransferAmount (#933)
Variable StarShip.reflectionFromToken(uint256,bool).rTransferAmount (#845) is too similar to StarShip._getValues(uint256).tTransferAmount (#925)
Variable StarShip._transferToExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to StarShip._transferBothExcluded(address,address,uint256).tTransferAmount (#879)
Variable StarShip._transferToExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to StarShip._transferToExcluded(address,address,uint256).tTransferAmount (#1142)
Variable StarShip._getValues(uint256).rTransferAmount (#926) is too similar to StarShip._transferBothExcluded(address,address,uint256).tTransferAmount (#879)
Variable StarShip.reflectionFromToken(uint256,bool).rTransferAmount (#845) is too similar to StarShip._transferFromExcluded(address,address,uint256).tTransferAmount (#1152)
Variable StarShip._transferFromExcluded(address,address,uint256).rTransferAmount (#1152) is too similar to StarShip._getValues(uint256).tTransferAmount (#925)
Variable StarShip._transferFromExcluded(address,address,uint256).rTransferAmount (#1152) is too similar to StarShip._transferBothExcluded(address,address,uint256).tTransferAmount (#879)
Variable StarShip._transferFromExcluded(address,address,uint256).rTransferAmount (#1152) is too similar to StarShip._transferToExcluded(address,address,uint256).tTransferAmount (#1142)
Variable StarShip._transferToExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to StarShip._getTValues(uint256).tTransferAmount (#933)
Variable StarShip._transferToExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to StarShip._getValues(uint256).tTransferAmount (#925)
Variable StarShip._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#941) is too similar to StarShip._transferBothExcluded(address,address,uint256).tTransferAmount (#879)
Variable StarShip._transferToExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to StarShip._transferFromExcluded(address,address,uint256).tTransferAmount (#1152)
Variable StarShip._getValues(uint256).rTransferAmount (#926) is too similar to StarShip._getTValues(uint256).tTransferAmount (#933)
Variable StarShip._transferStandard(address,address,uint256).rTransferAmount (#1133) is too similar to StarShip._transferBothExcluded(address,address,uint256).tTransferAmount (#879)
Variable StarShip.reflectionFromToken(uint256,bool).rTransferAmount (#845) is too similar to StarShip._transferBothExcluded(address,address,uint256).tTransferAmount (#879)
Variable StarShip._transferBothExcluded(address,address,uint256).rTransferAmount (#879) is too similar to StarShip._transferBothExcluded(address,address,uint256).tTransferAmount (#879)
Variable StarShip.reflectionFromToken(uint256,bool).rTransferAmount (#845) is too similar to StarShip._transferToExcluded(address,address,uint256).tTransferAmount (#1142)
Variable StarShip._transferFromExcluded(address,address,uint256).rTransferAmount (#1152) is too similar to StarShip._getTValues(uint256).tTransferAmount (#933)
Variable StarShip._transferFromExcluded(address,address,uint256).rTransferAmount (#1152) is too similar to StarShip._transferFromExcluded(address,address,uint256).tTransferAmount (#1152)
Variable StarShip._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#941) is too similar to StarShip._transferToExcluded(address,address,uint256).tTransferAmount (#1142)
Variable StarShip._getValues(uint256).rTransferAmount (#926) is too similar to StarShip._transferToExcluded(address,address,uint256).tTransferAmount (#1142)
Variable StarShip._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#941) is too similar to StarShip._transferStandard(address,address,uint256).tTransferAmount (#1133)
Variable StarShip._transferBothExcluded(address,address,uint256).rTransferAmount (#879) is too similar to StarShip._transferToExcluded(address,address,uint256).tTransferAmount (#1142)
Variable StarShip.reflectionFromToken(uint256,bool).rTransferAmount (#845) is too similar to StarShip._transferStandard(address,address,uint256).tTransferAmount (#1133)
Variable StarShip._getValues(uint256).rTransferAmount (#926) is too similar to StarShip._transferStandard(address,address,uint256).tTransferAmount (#1133)
Variable StarShip._transferStandard(address,address,uint256).rTransferAmount (#1133) is too similar to StarShip._transferToExcluded(address,address,uint256).tTransferAmount (#1142)
Variable StarShip._transferBothExcluded(address,address,uint256).rTransferAmount (#879) is too similar to StarShip._transferStandard(address,address,uint256).tTransferAmount (#1133)
Variable StarShip._transferToExcluded(address,address,uint256).rTransferAmount (#1142) is too similar to StarShip._transferStandard(address,address,uint256).tTransferAmount (#1133)
Variable StarShip._transferStandard(address,address,uint256).rTransferAmount (#1133) is too similar to StarShip._transferStandard(address,address,uint256).tTransferAmount (#1133)
Variable StarShip._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#941) is too similar to StarShip._getValues(uint256).tTransferAmount (#925)
Variable StarShip._getValues(uint256).rTransferAmount (#926) is too similar to StarShip._getValues(uint256).tTransferAmount (#925)
Variable StarShip._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#941) is too similar to StarShip._transferFromExcluded(address,address,uint256).tTransferAmount (#1152)
Variable StarShip._getValues(uint256).rTransferAmount (#926) is too similar to StarShip._transferFromExcluded(address,address,uint256).tTransferAmount (#1152)
Variable StarShip._transferBothExcluded(address,address,uint256).rTransferAmount (#879) is too similar to StarShip._getValues(uint256).tTransferAmount (#925)
Variable StarShip._transferStandard(address,address,uint256).rTransferAmount (#1133) is too similar to StarShip._getValues(uint256).tTransferAmount (#925)
Variable StarShip._transferBothExcluded(address,address,uint256).rTransferAmount (#879) is too similar to StarShip._transferFromExcluded(address,address,uint256).tTransferAmount (#1152)
Variable StarShip._transferBothExcluded(address,address,uint256).rTransferAmount (#879) is too similar to StarShip._getTValues(uint256).tTransferAmount (#933)
Variable StarShip._transferStandard(address,address,uint256).rTransferAmount (#1133) is too similar to StarShip._transferFromExcluded(address,address,uint256).tTransferAmount (#1152)
Variable StarShip._transferFromExcluded(address,address,uint256).rTransferAmount (#1152) is too similar to StarShip._transferStandard(address,address,uint256).tTransferAmount (#1133)
Prevent variables from having similar names.

Additional information: link

StarShip._decimals (#722) should be constant
StarShip._name (#720) should be constant
StarShip._symbol (#721) should be constant
StarShip._tTotal (#716) should be constant
StarShip.numTokensSellToAddToLiquidity (#737) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#452-455)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#461-465)
geUnlockTime() should be declared external:
- Ownable.geUnlockTime() (#467-469)
lock(uint256) should be declared external:
- Ownable.lock(uint256) (#472-477)
unlock() should be declared external:
- Ownable.unlock() (#480-485)
name() should be declared external:
- StarShip.name() (#771-773)
symbol() should be declared external:
- StarShip.symbol() (#775-777)
decimals() should be declared external:
- StarShip.decimals() (#779-781)
totalSupply() should be declared external:
- StarShip.totalSupply() (#783-785)
transfer(address,uint256) should be declared external:
- StarShip.transfer(address,uint256) (#792-795)
allowance(address,address) should be declared external:
- StarShip.allowance(address,address) (#797-799)
approve(address,uint256) should be declared external:
- StarShip.approve(address,uint256) (#801-804)
transferFrom(address,address,uint256) should be declared external:
- StarShip.transferFrom(address,address,uint256) (#806-810)
increaseAllowance(address,uint256) should be declared external:
- StarShip.increaseAllowance(address,uint256) (#812-815)
decreaseAllowance(address,uint256) should be declared external:
- StarShip.decreaseAllowance(address,uint256) (#817-820)
isExcludedFromReward(address) should be declared external:
- StarShip.isExcludedFromReward(address) (#822-824)
totalFees() should be declared external:
- StarShip.totalFees() (#826-828)
deliver(uint256) should be declared external:
- StarShip.deliver(uint256) (#830-837)
reflectionFromToken(uint256,bool) should be declared external:
- StarShip.reflectionFromToken(uint256,bool) (#839-848)
excludeFromReward(address) should be declared external:
- StarShip.excludeFromReward(address) (#856-864)
excludeFromFee(address) should be declared external:
- StarShip.excludeFromFee(address) (#889-891)
includeInFee(address) should be declared external:
- StarShip.includeInFee(address) (#893-895)
setSwapAndLiquifyEnabled(bool) should be declared external:
- StarShip.setSwapAndLiquifyEnabled(bool) (#911-914)
isExcludedFromFee(address) should be declared external:
- StarShip.isExcludedFromFee(address) (#997-999)
Use the external attribute for functions never called from the contract.

Additional information: link

StarShip.includeInReward(address) (#866-877) has costly operations inside a loop:
- _excluded.pop() (#873)
Use a local variable to hold the loop computation result.

Additional information: link

StarShip.addLiquidity(uint256,uint256) (#1096-1109) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
Ensure that all the return values of the function calls are used.

Additional information: link

StarShip.allowance(address,address).owner (#797) shadows:
- Ownable.owner() (#433-435) (function)
StarShip._approve(address,address,uint256).owner (#1001) shadows:
- Ownable.owner() (#433-435) (function)
Rename the local variables that shadow another component.

Additional information: link

StarShip.setTaxFeePercent(uint256) (#897-899) should emit an event for:
- _taxFee = taxFee (#898)
StarShip.setLiquidityFeePercent(uint256) (#901-903) should emit an event for:
- _liquidityFee = liquidityFee (#902)
StarShip.setMaxTxPercent(uint256) (#905-909) should emit an event for:
- _maxTxAmount = _tTotal.mul(maxTxPercent).div(10 ** 2) (#906-908)
Emit an event for critical parameter changes.

Additional information: link

Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.

Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.

Swap operations require suspiciously high gas. Contract logic is complex and may disguise some form of scam.

Token is deployed only at one blockchain

Contract has 10% buy tax and 9% sell tax.
Taxes are low and contract ownership is renounced.

Unable to find token contract audit

Unable to find audit link on the website

Young tokens have high risks of scam / price dump / death

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death